配位化学中的直线自由能关系 ⅩⅫ.铜(Ⅱ)—α-氨基酸—二氧四胺大环三元体系

Linear Free Energy Relationships in Coordination Chemistry XXII. Cu( II )-α-Aminoacids—Dioxotetraamine Macrocycles Ternary Systems

用pH法在25.0+0.1℃,I=0.1mol·dm^(-3)KNO_3条件下研究了铜(Ⅱ)—α-氨基酸—13-(2′-羟基-3′,5′-取代苄基)-l,4,8,11-四氮杂环十四烷-12,14-二酮竞争性三元混配型配合物的稳定性.测定了该体系的三元配合物的稳定常数。

The stability of Cu(II)-a - aminoacids-13- (2' - hydroxy - 3', 5' - substituted benzyl) - 1,4,8,11 - tetraazacyclotetradecane - 12,14 - dione ( RTADO - 14) ternary complexcompounds has been studied by means of pH titration method at 25. 0 ±0.1℃ and I = 0. 1mol dm-3KNO3. The formation constants of ternary complex compounds were obtained. The structures of ternary complex compounds and the effect of substituents on macrocyclic ligands were also discussed.